Scrambling - Classification Systems

Classification Systems

In the U.S., scrambling is Class 3 in the Yosemite Decimal System of climb difficulties. In the British system it is Easy with some of the harder scrambles incorporating moves of Mod or even Diff standard.

Some guide books on scrambling may rate the routes as follows:

• easy — generally, just off-trail hiking with minimal exposure (if at all) and perhaps a handhold or two. UIAA Class I.
• moderate — handholds frequently needed, possible exposure, route finding skills helpful. UIAA Class II.
• difficult — almost constant handholds, fall distance may be fatal, route finding skills needed, loose and downsloping rock. Less experienced parties may consider using a rope for short sections. YDS class 3, 4, and possibly 5.

In the UK, scrambles are usually rated using Ashton's system of either Grade 1, 2, 3 or 3S (S for serious), with the grade being based around technical difficulty and exposure. The North Ridge of Tryfan in Snowdonia, or Striding Edge on Helvellyn in the Lake District, are classic Grade 1 scrambles. At the other end of the scale, Broad Stand on Sca Fell is usually considered Grade 3 or 3S. Note that some of the older Scottish guidebooks used a system of grades 1 to 5, leading to considerable confusion and variation over grades 1, 2 and 3 in Scotland.